Printing ink compositions

A technology of ink composition and compound, applied in the direction of ink, household utensils, applications, etc., can solve problems such as ink applications that are not described

Inactive Publication Date: 2009-05-20
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Printing ink compositions
  • Printing ink compositions
  • Printing ink compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0140] Analytical method

[0141] Determination of free formaldehyde content

[0142] Determination of formaldehyde content by HPLC according to the Lutidin-Methode (official overview of research methods according to §64LFGB K 84.007 (EG): "Proof and Quantitative Determination of Free Formaldehyde")

[0143] Instrumentation: HPLC system equipped with two isocratic elution pumps (isokratischen Pumpen), thermostatted reactor, variable UV / VIS detector and analytical unit (eg Hewlett-Packard HP 1100 with PC supported analytical software ChemStation).

[0144] Stationary Phase C18 - Inverted Phase, 5µm, 250 x 4.0mm

[0145] Mobile Phase Milli-Q-Water

[0146] Injection volume 20μl

[0147] Post-column derivatization of acetylacetone solution

[0148] Flow 1.0ml / min

[0149] Detection UV-detection wavelength 420nm

[0150] Sample preparation Dissolve 250mg in 3ml THF, then top up to 25ml with water

[0151] Calibration solution 100mg formaldehyde solution / 100ml wate...

Embodiment A

[0202] Example A: Reproduction (Nachstellung) of Example 2 described in DE 892 974

[0203] After adding 240 g of 50% potassium hydroxide solution and 400 g of methanol, 1000 g of 30% formaldehyde solution was added to 1200 g of acetophenone with vigorous stirring within 2 hours. At this point the temperature will rise to 90°C. This temperature was maintained for 10 hours. After acidification with sulfuric acid, the resulting coagulum is washed with hot water, melted and removed in vacuo.

[0204] 1260 g of yellow resin were obtained. The resin is transparent and brittle, and has a melting point of 67°C. The Gardner color number was 3.8 (50% in ethyl acetate). For example, it is soluble in acetates such as butyl acetate and ethyl acetate, and in aromatic compounds such as toluene and xylene. Insoluble in ethanol. The formaldehyde content was 255ppm.

Embodiment B

[0205] Example B: Reproduction of Example 3 described in DE 33 34 631 A1

[0206] The resin obtained according to Example A was hydrogenated continuously in a trickle-bed reactor at 300 bar and a temperature of 180° C. according to Example 3 described in DE 33 34 631 A1. 100 mL of Harshaw-Ni-5124 catalyst (available through Engelhard Corporation) was added to the reactor. 50 mL of 30% resin solution was added to isobutanol every hour to replenish the consumed hydrogen so that the pressure in the reactor was kept constant at 300 bar.

[0207] Embodiments of the Invention

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Abstract

The invention relates to a printing ink composition, containing at least one binder, a formaldehyde-free carbonyl-hydrated ketone aldehyde resin, a coloring agent, and further containing an optionally auxiliary agent and additive when it is necessary; the carbonyl-hydrated ketone aldehyde resin is made by using the formaldehyde as the base, having low viscosity, a very low color number, and very high heat and light resistance. This invention further relates to a method for the production and the use thereof.

Description

technical field [0001] The present invention relates to an ink composition comprising at least one binder (Bindemittel), a formaldehyde-free carbonyl hydrogenated ketone aldehyde resin, a colorant, and optionally auxiliaries and additives, the carbonyl hydrogenated ketone aldehyde resin having formaldehyde as the It is made from the base, with small viscosity, extremely low color number, and extremely high heat resistance and light resistance; the present invention also relates to a method for preparing the ink composition and its application. Background technique [0002] These ink compositions can be printed on various substrates such as plastic films and / or composites such as aluminized films, textiles, fibers, woven materials, leather, metal, cardboard, paper, cardboard, glass, Laminate paperboard and / or synthetic materials, such as artificial leather, etc., with a coating that is substantially free of formaldehyde. These ink compositions are suitable for all common pri...

Claims

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Application Information

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IPC IPC(8): C09D11/10
CPCC09D11/103C09D11/322C09D11/102
Inventor P·格洛克纳A·温宁
Owner EVONIK DEGUSSA GMBH
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